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          Institute: MPI für Gravitationsphysik     Collection: Astrophysical Relativity     Display Documents



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ID: 334891.0, MPI für Gravitationsphysik / Astrophysical Relativity
Recoil velocities from equal-mass binary-black-hole mergers
Authors:Koppitz, Michael; Pollney, Denis; Reisswig, Christian; Rezzolla, Luciano; Thornburg, Jonathan; Diener, Peter; Schnetter, Erik
Date of Publication (YYYY-MM-DD):2007-07-27
Title of Journal:Physical Review Letters
Volume:99
Issue / Number:4
Sequence Number of Article:041102
Review Status:not specified
Audience:Not Specified
Abstract / Description:The final evolution of a binary-black-hole system gives rise to a recoil velocity if an asymmetry is present in the emitted gravitational radiation. Measurements of this effect for nonspinning binaries with unequal masses have pointed out that kick velocities ~175 km/s can be reached for a mass ratio ~=0.36. However, a larger recoil can be obtained for equal-mass binaries if the asymmetry is provided by the spins. Using two independent methods we show that the merger of such binaries yields velocities as large as ~440 km/s for black holes having unequal spins that are antialigned and parallel to the orbital angular momentum
External Publication Status:published
Document Type:Article
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:ISI:000248345800008 [ID No:1]
ISSN:0031-9007 [ID No:2]
DOI:http://link.aps.org/abstract/PRL/v99/e041102
LOCALID:arXiv:gr-qc/0701163
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0701163v2.pdf  [135,00 Kb] [Comment:arXiv:gr-qc/0701163v2]  
 
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